/ Dictionary / Index Q qt.: Meaning and Definition of Find definitions for: qt. Pronunciation: [key] — pl. qt., qts. quantity. quart. q.t. Pronunciation: [key] — Informal. Informal. quiet. stealthily; secretly: to meet someone on the q.t. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. QSS Q-Tip Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language